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Treatise on Combined Metalworking Techniques: Forged Elements and Chased Raised Shapes Bonnie Gallagher
Rochester Institute of Technology RIT Scholar Works Theses Thesis/Dissertation Collections 1972 Treatise on combined metalworking techniques: forged elements and chased raised shapes Bonnie Gallagher Follow this and additional works at: http://scholarworks.rit.edu/theses Recommended Citation Gallagher, Bonnie, "Treatise on combined metalworking techniques: forged elements and chased raised shapes" (1972). Thesis. Rochester Institute of Technology. Accessed from This Thesis is brought to you for free and open access by the Thesis/Dissertation Collections at RIT Scholar Works. It has been accepted for inclusion in Theses by an authorized administrator of RIT Scholar Works. For more information, please contact [email protected]. TREATISE ON COMBINED METALWORKING TECHNIQUES i FORGED ELEMENTS AND CHASED RAISED SHAPES TREATISE ON. COMBINED METALWORKING TECHNIQUES t FORGED ELEMENTS AND CHASED RAISED SHAPES BONNIE JEANNE GALLAGHER CANDIDATE FOR THE MASTER OF FINE ARTS IN THE COLLEGE OF FINE AND APPLIED ARTS OF THE ROCHESTER INSTITUTE OF TECHNOLOGY AUGUST ( 1972 ADVISOR: HANS CHRISTENSEN t " ^ <bV DEDICATION FORM MUST GIVE FORTH THE SPIRIT FORM IS THE MANNER IN WHICH THE SPIRIT IS EXPRESSED ELIEL SAARINAN IN MEMORY OF MY FATHER, WHO LONGED FOR HIS CHILDREN TO HAVE THE OPPORTUNITY TO HAVE THE EDUCATION HE NEVER HAD THE FORTUNE TO OBTAIN. vi PREFACE Although the processes of raising, forging, and chasing of metal have been covered in most technical books, to date there is no major source which deals with the functional and aesthetic requirements -
National Register of Historic Places Multiple Property
NFS Form 10-900-b 0MB No. 1024-0018 (Jan. 1987) United States Department of the Interior National Park Service National Register of Historic Places Multipler Propertyr ' Documentation Form NATIONAL This form is for use in documenting multiple property groups relating to one or several historic contexts. See instructions in Guidelines for Completing National Register Forms (National Register Bulletin 16). Complete each item by marking "x" in the appropriate box or by entering the requested information. For additional space use continuation sheets (Form 10-900-a). Type all entries. A. Name of Multiple Property Listing ____Iron and Steel Resources of Pennsylvania, 1716-1945_______________ B. Associated Historic Contexts_____________________________ ~ ___Pennsylvania Iron and Steel Industry. 1716-1945_________________ C. Geographical Data Commonwealth of Pennsylvania continuation sheet D. Certification As the designated authority under the National Historic Preservation Act of 1966, as amended, J hereby certify that this documentation form meets the National Register documentation standards and sets forth requirements for the listing of related properties consistent with the National Register criteria. This submission meets the procedural and professional requiremerytS\set forth iri36JCFR PafrfsBOfcyid the Secretary of the Interior's Standards for Planning and Evaluation. Signature of certifying official Date / Brent D. Glass Pennsylvania Historical & Museum Commission State or Federal agency and bureau I, hereby, certify that this multiple -
Boilermaker Health & Safety Manual
Boilermakers Health & Safety Manual ihsa.ca Boilermakers Health & Safety Manual Infrastructure Health & Safety Association 5110 Creekbank Road, Suite 400 Mississauga, Ontario L4W 0A1 Canada 1-800-263-5024 ihsa.ca 1 Boilermakers Health & Safety Manual IHSA has additional information on this and other topics. Visit ihsa.ca or call Customer Service at 1-800-263-5024. The contents of this publication are for general information only. This publication should not be regarded or relied upon as a definitive guide to government regulations or to safety practices and procedures. The contents of this publication were, to the best of our knowledge, current at the time of printing. However, no representations of any kind are made with regard to the accuracy, completeness, or sufficiency of the contents. The appropriate regulations and statutes should be consulted. Readers should not act on the information contained herein without seeking specific independent legal advice on their specific circumstance. The Infrastructure Health & Safety Association is pleased to answer individual requests for counselling and advice. This manual was developed, reviewed, and endorsed by the Boilermakers Labour-Management Health and Safety Committee in association with IHSA. Manual IHSA editor: Lori-Lynn Bonnell, design and illustrations: Philippa Giancontieri; project manager: Mike Russo. The Infrastructure Health & Safety Association would like to thank the members of the working group for contributing their knowledge, experience, and time to produce a health and safety manual that will benefit both labour and management in the boilermaker sector. The working group included representatives from the Boilermaker Contractors’ Association (BCA) as well as: · Marty Albright – Alstom Power Canada Inc. -
Three Hundred Years of Assaying American Iron and Iron Ores
Bull. Hist. Chem, 17/18 (1995) 41 THREE HUNDRED YEARS OF ASSAYING AMERICAN IRON AND IRON ORES Kvn K. Oln, WthArt It can reasonably be argued that of all of the industries factors were behind this development; increased pro- that made the modern world possible, iron and steel cess sophistication, a better understanding of how im- making holds a pivotal place. Without ferrous metals purities affected iron quality, increased capital costs, and technology, much of the modem world simply would a generation of chemically trained metallurgists enter- not exist. As the American iron industry grew from the ing the industry. This paper describes the major advances isolated iron plantations of the colonial era to the com- in analytical development. It also describes how the plex steel mills of today, the science of assaying played 19th century iron industry serves as a model for the way a critical role. The assayer gave the iron maker valu- an expanding industry comes to rely on analytical data able guidance in the quest for ever improving quality for process control. and by 1900 had laid down a theoretical foundation for the triumphs of steel in our own century. 1500's to 1800 Yet little is known about the assayer and how his By the mid 1500's the operating principles of assay labo- abilities were used by industry. Much has been written ratories were understood and set forth in the metallurgi- about the ironmaster and the furnace workers. Docents cal literature. Agricola's Mtll (1556), in period dress host historic ironmaking sites and inter- Biringuccio's rthn (1540), and the pret the lives of housewives, miners, molders, clerks, rbrbühln (Assaying Booklet, anon. -
Henry Bessemer and the Mass Production of Steel
Henry Bessemer and the Mass Production of Steel Englishmen, Sir Henry Bessemer (1813-1898) invented the first process for mass-producing steel inexpensively, essential to the development of skyscrapers. Modern steel is made using technology based on Bessemer's process. Bessemer was knighted in 1879 for his contribution to science. The "Bessemer Process" for mass-producing steel, was named after Bessemer. Bessemer's famous one-step process for producing cheap, high-quality steel made it possible for engineers to envision transcontinental railroads, sky-scraping office towers, bay- spanning bridges, unsinkable ships, and mass-produced horseless carriages. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron. The oxidation also raises the temperature of the iron mass and keeps it molten. In the U.S., where natural resources and risk-taking investors were abundant, giant Bessemer steel mills sprung up to drive the expanding nation's rise as a dominant world economic and industrial leader. Why Steel? Steel is the most widely used of all metals, with uses ranging from concrete reinforcement in highways and in high-rise buildings to automobiles, aircraft, and vehicles in space. Steel is more ductile (able to deform without breakage) and durable than cast iron and is generally forged, rolled, or drawn into various shapes. The Bessemer process revolutionized steel manufacture by decreasing its cost. The process also decreased the labor requirements for steel-making. Prior to its introduction, steel was far too expensive to make bridges or the framework for buildings and thus wrought iron had been used throughout the Industrial Revolution. -
Aluminum Alloy AA-6061 and RSA-6061 Heat Treatment for Large Mirror Applications
Utah State University DigitalCommons@USU Space Dynamics Lab Publications Space Dynamics Lab 1-1-2013 Aluminum Alloy AA-6061 and RSA-6061 Heat Treatment for Large Mirror Applications T. Newsander B. Crowther G. Gubbels R. Senden Follow this and additional works at: https://digitalcommons.usu.edu/sdl_pubs Recommended Citation Newsander, T.; Crowther, B.; Gubbels, G.; and Senden, R., "Aluminum Alloy AA-6061 and RSA-6061 Heat Treatment for Large Mirror Applications" (2013). Space Dynamics Lab Publications. Paper 102. https://digitalcommons.usu.edu/sdl_pubs/102 This Article is brought to you for free and open access by the Space Dynamics Lab at DigitalCommons@USU. It has been accepted for inclusion in Space Dynamics Lab Publications by an authorized administrator of DigitalCommons@USU. For more information, please contact [email protected]. Aluminum alloy AA-6061 and RSA-6061 heat treatment for large mirror applications T. Newswandera, B. Crowthera, G. Gubbelsb, R. Sendenb aSpace Dynamics Laboratory, 1695 North Research Park Way, North Logan, UT 84341;bRSP Technology, Metaalpark 2, 9936 BV, Delfzijl, The Netherlands ABSTRACT Aluminum mirrors and telescopes can be built to perform well if the material is processed correctly and can be relatively low cost and short schedule. However, the difficulty of making high quality aluminum telescopes increases as the size increases, starting with uniform heat treatment through the thickness of large mirror substrates. A risk reduction effort was started to build and test a ½ meter diameter super polished aluminum mirror. Material selection, the heat treatment process and stabilization are the first critical steps to building a successful mirror. In this study, large aluminum blanks of both conventional AA-6061 per AMS-A-22771 and RSA AA-6061 were built, heat treated and stress relieved. -
Principles of Extractive Metallurgy Lectures Note
PRINCIPLES OF EXTRACTIVE METALLURGY B.TECH, 3RD SEMESTER LECTURES NOTE BY SAGAR NAYAK DR. KALI CHARAN SABAT DEPARTMENT OF METALLURGICAL AND MATERIALS ENGINEERING PARALA MAHARAJA ENGINEERING COLLEGE, BERHAMPUR DISCLAIMER This document does not claim any originality and cannot be used as a substitute for prescribed textbooks. The information presented here is merely a collection by the author for their respective teaching assignments as an additional tool for the teaching-learning process. Various sources as mentioned at the reference of the document as well as freely available material from internet were consulted for preparing this document. The ownership of the information lies with the respective author or institutions. Further, this document is not intended to be used for commercial purpose and the faculty is not accountable for any issues, legal or otherwise, arising out of use of this document. The committee faculty members make no representations or warranties with respect to the accuracy or completeness of the contents of this document and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. BPUT SYLLABUS PRINCIPLES OF EXTRACTIVE METALLURGY (3-1-0) MODULE I (14 HOURS) Unit processes in Pyro metallurgy: Calcination and roasting, sintering, smelting, converting, reduction, smelting-reduction, Metallothermic and hydrogen reduction; distillation and other physical and chemical refining methods: Fire refining, Zone refining, Liquation and Cupellation. Small problems related to pyro metallurgy. MODULE II (14 HOURS) Unit processes in Hydrometallurgy: Leaching practice: In situ leaching, Dump and heap leaching, Percolation leaching, Agitation leaching, Purification of leach liquor, Kinetics of Leaching; Bio- leaching: Recovery of metals from Leach liquor by Solvent Extraction, Ion exchange , Precipitation and Cementation process. -
Fire Protection of Steel Structures: Examples of Applications
Fire protection of steel structures: examples of applications Autor(en): Brozzetti, Jacques / Pettersson, Ove / Law, Margaret Objekttyp: Article Zeitschrift: IABSE proceedings = Mémoires AIPC = IVBH Abhandlungen Band (Jahr): 7 (1983) Heft P-61: Fire protection of steel structures: examples of applications PDF erstellt am: 06.10.2021 Persistenter Link: http://doi.org/10.5169/seals-37489 Nutzungsbedingungen Die ETH-Bibliothek ist Anbieterin der digitalisierten Zeitschriften. Sie besitzt keine Urheberrechte an den Inhalten der Zeitschriften. Die Rechte liegen in der Regel bei den Herausgebern. Die auf der Plattform e-periodica veröffentlichten Dokumente stehen für nicht-kommerzielle Zwecke in Lehre und Forschung sowie für die private Nutzung frei zur Verfügung. Einzelne Dateien oder Ausdrucke aus diesem Angebot können zusammen mit diesen Nutzungsbedingungen und den korrekten Herkunftsbezeichnungen weitergegeben werden. Das Veröffentlichen von Bildern in Print- und Online-Publikationen ist nur mit vorheriger Genehmigung der Rechteinhaber erlaubt. Die systematische Speicherung von Teilen des elektronischen Angebots auf anderen Servern bedarf ebenfalls des schriftlichen Einverständnisses der Rechteinhaber. Haftungsausschluss Alle Angaben erfolgen ohne Gewähr für Vollständigkeit oder Richtigkeit. Es wird keine Haftung übernommen für Schäden durch die Verwendung von Informationen aus diesem Online-Angebot oder durch das Fehlen von Informationen. Dies gilt auch für Inhalte Dritter, die über dieses Angebot zugänglich sind. Ein Dienst der ETH-Bibliothek ETH Zürich, Rämistrasse 101, 8092 Zürich, Schweiz, www.library.ethz.ch http://www.e-periodica.ch J% IABSE periodica 2/1983 IABSE PROCEEDINGS P-61/83 69 Fire Protection of Steel Structures — Examples of Applications Protection contre le feu des structures acier — Quelques exemples d'applications Brandschutz der Stahlkonstruktionen — Einige Anwendungsbeispiele Jacques BROZZETTI Margaret LAW Dir., Dep. -
Interchange Modification Report
I-26 / Naval Base Terminal Access Road Interchange INTERCHANGE MODIFICATION REPORT CHARLESTON COUNTY, SOUTH CAROLINA Prepared for: South Carolina Department of Transportation Prepared by: Parsons Brinckerhoff, Inc. May 2012 I-26ȀPortAccessRoadInterchangeModificationReport TABLEOFCONTENTS EXECUTIVE SUMMARY ............................................................................................................................................ 1 1. INTRODUCTION .............................................................................................................................................. 3 Project Location.................................................................................................................................................. 3 Project History.................................................................................................................................................... 3 Project Description ............................................................................................................................................. 7 Project Purpose and Need .................................................................................................................................. 9 Project Conceptual Design ................................................................................................................................ 11 Interchange Modification Report (IMR) Scope.................................................................................................. -
A Comparison of Thixocasting and Rheocasting
A Comparison of Thixocasting and Rheocasting Stephen P. Midson The Midson Group, Inc. Denver, Colorado USA Andrew Jackson Arthur Jackson & Co., Ltd. Brighouse UK Abstract The first semi-solid casting process to be commercialized was thixocasting, where a pre-cast billet is re-heated to the semi-solid solid casting temperature. Advantages of thixocasting include the production of high quality components, while the main disadvantage is the higher cost associated with the production of the pre-cast billets. Commercial pressures have driven casters to examine a different approach to semi-solid casting, where the semi-solid slurry is generated directly from the liquid adjacent to a die casting machine. These processes are collectively referred to as rheocasting, and there are currently at least 15 rheocasting processes either in commercial production or under development around the world. This paper will describe technical aspects of both thixocasting and rheocasting, comparing the procedures used to generate the globular, semi-solid slurry. Two rheocasting processes will be examined in detail, one involved in the production of high integrity properties, while the other is focusing on reducing the porosity content of conventional die castings. Key Words Semi-solid casting, thixocasting, rheocasting, aluminum alloys 22 / 1 Introduction Semi-solid casting is a modified die casting process that reduces or eliminates the porosity present in most die castings [1] . Rather than using liquid metal as the feed material, semi-solid processing uses a higher viscosity feed material that is partially solid and partially liquid. The high viscosity of the semi-solid metal, along with the use of controlled die filling conditions, ensures that the semi-solid metal fills the die in a non-turbulent manner so that harmful gas porosity can be essentially eliminated. -
Defensive-Architecture-Of-The-Mediterranean VI 46.Pdf
6 DEFENSIVE ARCHITECTURE OF THE MEDITERRANEAN XV TO XVIII CENTURIES Vol. VI PROCEEDINGS of the International Conference on Modern Age Fortifications of the Mediterranean Coast FORTMED 2017 DEFENSIVE ARCHITECTURE OF THE MEDITERRANEAN XV TO XVIII CENTURIES Vol. VI Editor Ángel Benigno González Avilés Universidad de Alicante. Spain EDITORIAL PUBLICACIONS UNIVERSITAT D’ALACANT FORTMED 2017 Colección Congresos UA Los contenidos de esta publicación han sido evaluados por el Comité Científico que en ella se relaciona y según el procedimiento de la ``revisión por pares´´. © editor Ángel Benigno González Avilés © de los textos: los autores © 2017, de la presente edición: Editorial Publicacions Universitat d’Alacant. www.publicaciones.ua.es/ Imprime: ISBN: 978-84-16724-76-5 (Vol.VI) Depósito legal: A 494-2017 FORTMED – Modern Age Fortifications of the Mediterranean Coast, Alicante, October 26th, 27th, 28th 2017 Defensive Architecture of the Mediterranean. XV to XVIII centuries / Vol VI / González Avilés (Ed.) © 2017 Editorial Publicacions Universitat d’Alacant Digital tools for documentation and interpretation of the fortification system of Elba: the Giove Fort as a connection point between ancient routes and visual targets. Giulia Baldia, Mirco Puccib, Giorgio Verdianic aDipartimento di Architettura, Florence, Italy, [email protected] bDipartimento di Architettura, Florence, Italy, [email protected] cDipartimento di Architettura, Florence, Italy, [email protected] Abstract Elba territory presents a dense network of forts and outposts created by the various dynasties and conquerors that ruled the Island through the centuries. This defensive apparatus was connected by ancient paths, routes and visual systems, as it is possible to notice from the landscape, showing the various watch towers located on hills. -
Experimental Design for Copper Cementation Process in Fixed Bed
Arabian Journal of Chemistry (2010) 3, 187–190 King Saud University Arabian Journal of Chemistry www.ksu.edu.sa www.sciencedirect.com ORIGINAL ARTICLE Experimental design for copper cementation process in fixed bed reactor using two-level factorial design I. Yahiaoui *, F. Aissani-Benissad Laboratoire de Ge´nie de l’Environnement (LGE), De´partement de Ge´nie des Proce´de´s, Faculte´ de la Technologie, Universite´ A.MIRA de Bejaia 06000, Algeria Received 20 July 2009; accepted 20 December 2009 Available online 18 April 2010 KEYWORDS Abstract This work deals with cementation of copper onto iron grid in a fixed bed reactor. The 2+ Copper; influence of several parameters is studied, namely: initial concentration of copper [Cu ]0, temper- Iron; ature and flow rate. Moreover, their influence on the copper cementation reaction is investigated Fixed bed reactor; statistically by the experimental design in view of industrial application. The estimation and the Factorial design comparison of the parameter’s effects are realized by using two-level factorial design. The analysis of these effects permits to state that the most influential factor is initial concentration of copper 2+ [Cu ]0 with an effect of (+2.4566), the second in the order is the temperature with an effect of (+0.18959), the third is the flow rate of the electrolytic solution with an effect of (À0.4226). The significance interactions found by the design of experiments are between initial concentrations of copper ions–flow rate (x1x3) with an effect (b13 = +0.6965). ª 2010 King Saud University. All rights reserved. 1. Introduction Ultimately, this wastewater is discharged in permitted concen- trations of suspended solids and dissolved salts.